tv3, image [, two=bitmap1, three=bitmap2,
x=x, y=y] [, /dev, /dvi, /img, /rim, /plt, /rpl] [, /screen,
/pdev, /postscript, /plotwindow, /zoom, /center]
[x11] Displays an image and up to two bitmaps
simultaneously, using the "three-color" color table.
The image to be displayed. It must be a two-dimensional numerical array.
The bitmaps. If scalars are specified for either of these arguments,
then that argument is treated as if it were not specified. Otherwise,
the bitmaps must have the same number of elements as the image. Only
between zero and non-zero values is distinguished. Those parts of the
image that corresponds to zeros in both
bitmap2 (if specified) are displayed in the bottom section
of the color table (greyscale by default). Those parts that correspond
to ones in
bitmap1 are shown in the middle section of the
color table (red by default), and the parts that correspond to zeros in
bitmap1 but ones in
bitmap2 are displayed in
the top section of the color table (blue by default).
The target coordinates of the displayed image. The coordinates are
measured in the coordinate system indicated by one of the coordinate
system keywords, or in the
/dev system by default.
For the remaining keywords, see at
See also: threecolors, tv